Hi, we are using a FT245AM connected USB printer in our embedded machine which is running Linux. For any reason sometimes the device is lost. Since we do not know if it is caused by hardware, printer firmware or operating system I'm looking for people with similar experiences and maybe workarounds.
Regards, Klaus
I had nightmares with this kind of stuff, I was cursing FTDI as idiots until I tried it on another computer. It worked perfectly, without any problems whatsoever, apparently forever (though I didn't test it that long). The problem was the PC chipset (SiS in this case). Yes, even big famous companies can make mistakes.
Paul Burke
On some PC's I noticed the same problems (with FT232BM), how can I see what USB chipset is used ?
Stef Mientki
Paul Burke wrote:
see alimentation parameters in usb host : when no activitie the usb host stop particulary with all usb serial and parallel devices : prolifics or ftdi try to connect without usb hub and with usb1.1 i have the same probleme with thinkpad and nec laptop : now its ok
"Stef Mientki" a écrit dans le message de news:cdqr91$mam$ snipped-for-privacy@odysseus.uci.kun.nl...
Hi,
please explain, what do you mean with "alimentation parameters in usb host"?
Klaus
macaby wrote:
"alimentation" = "power" in French.
If the PC runs Linux perhaps this gives enough info for you:
lspci | grep USB
On windows goto 'Device Manager'
Joop
Using Windows, Control Panel->System->Device Manager->USB Controllers will tell you what type of USB devices are in use.
Paul Burke
There is a utility called "usbview.exe" from Microsoft. If it is not already installed on your PC then you can get a copy from several sources, one of which is FTDI. Probably need to browse around in their application notes and downloads/utilties area to find it.
A quick Google shows that some people have found it on the Win98 CD in Tools\ResKit\diagnose\
Rob Young rwy_nospam snipped-for-privacy@ieee.org
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